Finding the Fourth Proportional to 129,233.80, 193,413.30 and 113,487.40
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Solution
The fourth proportional to 129,233.80, 193,413.30 and 113,487.40 is: 169,846.99
Step by Step Solution
- Step 1: Write the proportion equation
129,233.80 : 193,413.30 = 113,487.40 : x - Step 2: Convert to fraction form
129,233.80/193,413.30 = 113,487.40/x - Step 3: Cross multiply
129,233.80x = 193,413.30 × 113,487.40 - Step 4: Simplify right side
129,233.80x = 21,949,972,542.42 - Step 5: Solve for x
x = 21,949,972,542.42/129,233.80 - Step 6: Final answer
x = 169,846.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.